Automobile exhaust-heater.



G. A. BARTHOLOMEW.

AUTOMOBILE EXHAUST HEATER. APPLICATION FILED NOVJZ4. L917.

1,67,46. Patented May 28,1918

3 SHEETSSHEET l- 7/ Snow Wot CLA .Barfizolom aw G. A. BARTHOLOMEW.

AUTOMOBlLE EXHAUST HEATER.

APPLICATION ElLED NOV. 24. 1917.

1 i v F? v 3% E Patented May 28, 1918.

3 SHEETS-SHEET 2- sraras ares orroa GILBERT A. BARTHOLOMEW, OF KENDALLVILLE, INDIANA, ASSIGNOR TO THE NOBLE HEATER COMPANY, OF KENDALLVILLE', INDIANA, A CORPORATION OF INDIANA.

AUTOMOBILE EXHAUST-HEATER.

Specification of Letters Patent.

Patented May 28, 191%.

Application filed November 24, 1917. Serial No. 203,795.

To all whom it may concerm Be it known that I, GILBERT A. BARTHOLO- MEW, a citizen of the United States, residing at Kendallville, in the county of Noble and State of Indiana, have invented new and useful Improvements in Automobile Exhaust-Heaters, of which the following is a specification.

This invention relates to new and useful improvements in heaters for automobiles and the principal object of the inventionis to provide means for heating the interior of the automobile by the exhaust gases from the motor.

Another object of the invention is to surround the hot gases on their way to the heater by the cooler gases coming from the heater. .Another object of the invention is to provide a alve for controlling the passage of gases to and from the heater and at the same time control the passage of said gases to the exhaust.

Another object of the invention is to provide a device of this character which is simple and durable in construction, reliable and eflicient in operation and one whichcan be manufactured and placed upon the market at a minimum cost.

The invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view showing the manner of carrying out my invention.

Fig. 2 is an elevation-of an upright heater with parts shown in section.

Fig. 3 is a section on line 33 of Fig. 2.

Fig. 1 is a plan view, with parts broken away, of a floor type of heater.

Fig. 5 is'a longitudinal section of Fig. 4.

Fi 6 is a perspective view of the combine valve and deflector.

Fig. 7 is a sectional view showin the arrangement of valve and deflector within the pipes.

Fig. 8 isa plan view of the parts shown in Fig. 7.

In carrying out my invention I locate a heater in the interior of the automobile and I connect the heater by a pipe to the exhaust pipe of the motor, whereby the exhaust gases from the motor are caused to circulate through the heater and I locate the exhaust pipe from the heater around the inlet pipe so that the gases flowing into the heater are prevented from giving off their heat to the surrounding atmosphere. Figs. 2 and 3 illustrate one form of heater in which 1 indicates a casing having perforations 2 in one side thereof and this casing is secured to the floor of the automobile in any suitable manner. Within the casing is located a lower horizontal tube 3 and an upper horizontal tube 4 connected together by a series of ver tical tubes 5. 6 indicates a large tube located centrally of the heater and connected at its upper end with the upper tube 4 its lower end passing through the central enlarged opening 7 in the bottom of the heater and is connected with the pipe 8 leading to the exhaust pipe 9 of the automobile. The enlargement 7 projects through an opening made in the floor of the automobile and the lower horizontal tube 3 is in communication with this opening and said opening is connected in its turn with the outlet pipe 10 which is connected with the exhaust pipe 9 as will be described hereinafter. Immediately above the top of the inlet pipe 6 the upper wall of the tube 4; is reinforced by a projection 4 so as to protect said tube from the intense heat of the incoming gases. 11. indicates a series of plates connected to the upper part of the tube 4 and upon which the top of the casing rests.

It will thus be seen that the exhaust gases from the motor will enter through the pipe 8 and pass up through the tube 6 into the tube 4 and will pass from'this tube downwardly through the tubes 5 into the tube 3 and will pass from this tube 3 through the outlet pipe 10 back to the exhaust pipe. Thus the heat from the gases will heat the air within the casing so as to setup a circulation therein and in the automobile and so heat the same. In this way the exhaust ses coming from the motor are utilized to fiat the interior of the automobile before going to waste through the mufi'ler.

' In the modification shown in Figs. 4 and 5 the'heater is made in the form of a floor heater or register. In this form the casing 1 is located below the floor of the automobile and the perforated cover plate 1 of said casing is secured to the floor. In this form the gases enter the central tube 6' at one end of the casing and from this tube they pass into the'other end of the casing and from this chamber they flow through the horizontally arranged tubes 5 into the chamber 12 at the inletend of the casing and from this chamber they pass into the outlet pipe 10 which surrounds the inlet pipe as before. In this construction the tubes are held to the casing by means of the bolts 13 engaging an enlargement made on the chambers 12 and 12.

As shown in Figs. 7 and '8 the exhaust pipe coming from the motor is provided with a coupling 14 which has an opening therein to which an elbow 15 is connected. This elbow is providedwith a vertical partition 16 which divides the opening 14; in half. This partition is provided with an opening which is connected by a ipe 17 with the inlet pi e 8" of the heater while the outer end 15 o the elbow is connected by suitable piping 10' with the outlet pipe 10 of the heater. Thus the gases coming from the motor will flow through half, of the opening 14, when diverted by the deflector 18 hereinafter described, through the o ening in the' partition 16, into the pipe I? through suitable tubing into the pipe 8 and after passing through the heater will pass therefrom through the'outlet pipe 10 and the tubing 10' connected therewith into the end 15 of the elbow and through the other half of the opening 14: into the exhaust pipe on the other side of the deflector and through said exhaust pipe into the muflier as usual. It will be seen that the gases coming from the heater surround the pipes carrying the gases to said heater so that said gases are prevented from being cooled by the surrounding atmosphere.

For controlling the flow of gases through the heater I utilize the combined valve and deflector shown in Figs. 6, 7 and 8 and as showii'in these figures the valve comprises a valve late composed of the two wings 19 arrange on the central stem .20 suitably mounted in the partition plate 16 so that the wings 19 will rotate below the opening 14. 1 form an annular recess 19 at the lower end of the elbow 15 to receive the edges of said wings. The stem 20 extends through the elbow and a spring 21 engaging with a cap 22 on said stem tends to hold the wings in the recesses. The deflector 18 extends at right angles to the wings and is made to conform to the shape of the exhaust pipe so and from this pipethat when the deflector is arranged across the exhaust pipe it will practically close the same and thus force the gases into the elbow 15. It will be understood that the openings 14 are made slightly smaller than the wings so that they may be closed by said wings. It will be also understood that the parts are so formed that when the deflector is arranged across the exhaust pipe that the openings will be uncovered for the passage of the gases and that when said deflector is arranged lengthwise within the pipe said openings will be closed.

Any desired means may be utilized for actuating the valve and deflector, those shown consisting of an arm 23 secured to thestem 20 and adapted to be connected by a wire or the like to means within the automobile whereby the valve may be opened and closed. A spring 24: tends to normally hold said valve in closed position and a stop 25 is located on the elbow 15 for limiting the movement of the arm 23.

-As shown in Fig. 1 the coupling 14; is clamped around the exhaust pipe by means of the straps 14:.

It is thought from the foregoing description that the advantages and novel features of m invention will be readily apparent.

I esire it to be understood that I may make slight changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. Means, for heating an automobile comprising a heater within thesame, a pipe connecting said heater with the exhaust pipe of the motor, a tube surrounding said pipe and connecting the heater pipe for leading the gases from the heater back to the exhaust pipe, and a combined valve and deflector for controlling the passage of the gases to and from said heater.

2. Means for heating an automobile comprising a heater within the same, inlet and outlet pipes connected with said heater, said outlet pipe surrounding said inlet pipe, an elbow connected with the exhaust pipe and having a pair of openings therein separated from each other, one of said openings being connected with the inlet pipe and the other opening being connected with the outlet pipe, a valve comprising a pair of wings for controlling said ,openings, and a deflector plate connected to said valve and extending into the exhaust pipe.

In testimony whereof I afiix'my signature.

GILBERT A. BARTHOLOMEW.

with the exhaust. 

